DewPro MMY245
Installation and Operation Manual
GE General Eastern
27
Cell Function
-20
Communication error after 5 retries.
-30
Unrecognized slave transmitter type.
-40
Attempting to compensate with incorrect sensor installed
5 Troubleshooting Validator Operation
Field maintenance consists of keeping the instrument clean and replacing the batteries when the unit
indicates they are low (see
V8 H5
).
Troubleshooting will be helpful in case the instrument does not perform and has an error indication on the
display. This troubleshooting guide is limited to the function of the unit and is not intended to address
questionable readings where there is no error code present. Suspected errors in readings should be dealt
with first by insuring all connections are leak free and the unit of measure is correctly set. The pressure
compensation mode should be verified that it is set correctly for the application. After these items are
verified to be correct, and if the unit still produces questionable readings, contact the factory field service
department by calling 800- 33HUMID (334-8643) for further assistance.
Troubleshooting Guide
Problem Cause
Remedy
Display reads high with handle in the bypass
position.
Desiccant is expended
Contact
Factory
Display is flashing and has a lightning bolt symbol.
Error has occurred or instrument
is off-scale
4. Connect to
a dry gas
source
5. Contact the
factory
Display reads a negative number during the
validation procedure.
An error has been detected during
the procedure.
Contact
Factory
